1. Remove the front and rear door sill trims (see "Removal and installation door sill trims").
2. In the areas where the center pillar trims are located, detach the door seal.
3. Remove the decorative cap of the lower seat belt mounting bolt...
4. ...unscrew the bolt...
5. ...and remove it together with the bushing and spring washer.
6. Gently push the lower trim away from the pillar and disengage it from the body pillar.
Note.
The lower trim of the central pillar is secured at the top with two hooks, made in one piece with the trim. If the hooks are damaged, replace the center pillar trim.
7. Remove the decorative trim...
8. ...unscrew the upper seat belt mounting bolt...
9. ...and disconnect the seat belt mounting loop together with the bolt and bushing from the upper anchor point adjustment mechanism.
10. Use a screwdriver to pry up and detach the upper trim panel of the central pillar.
11. Overcoming the resistance of the four plastic holders, remove the upper trim of the central body pillar.
12. Install the center pillar trims in the reverse order of removal. Pay attention to the condition of the plastic holders that secure the upper trim to the body pillar. Replace damaged holders with new ones.
The source is located on the website: LadaMan.ru